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D10 controller experienced operational error at 17000 ft when failing to detect overtake problem with 2 dfw departures.
| Attributes | |
| ACN | 677674 |
| Time | |
| Date | 200511 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : ttt.vor |
| State Reference | TX |
| Altitude | msl single value : 17000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d10.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Route In Use | departure sid : not stated |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zfw.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Falcon 50 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : developmental technician : repairman |
| Experience | controller radar : 20 controller time certified in position2 : 8 flight time total : 60 |
| ASRS Report | 677674 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 25200 vertical : 600 |
| Supplementary | |
| Problem Areas | Company |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
The E145 was lead aircraft on a SID; assigned a speed of 300 KTS or better. The FA50 was in trail of E145 and assigned speed of 280 KTS. Loss of spacing occurred with the FA50 level at 17000 ft and the E145 climbing through 16000 ft to 17000 ft. Poor judgement of aircraft performance by controller caused situation. Contributing factors: moderate or greater workload of controller. Observed by supervisor at time of event.
Original NASA ASRS Text
Title: D10 CTLR EXPERIENCED OPERROR AT 17000 FT WHEN FAILING TO DETECT OVERTAKE PROB WITH 2 DFW DEPS.
Narrative: THE E145 WAS LEAD ACFT ON A SID; ASSIGNED A SPD OF 300 KTS OR BETTER. THE FA50 WAS IN TRAIL OF E145 AND ASSIGNED SPD OF 280 KTS. LOSS OF SPACING OCCURRED WITH THE FA50 LEVEL AT 17000 FT AND THE E145 CLBING THROUGH 16000 FT TO 17000 FT. POOR JUDGEMENT OF ACFT PERFORMANCE BY CTLR CAUSED SITUATION. CONTRIBUTING FACTORS: MODERATE OR GREATER WORKLOAD OF CTLR. OBSERVED BY SUPVR AT TIME OF EVENT.
Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.